As the Intergovernmental Panel on Climate Change (IPCC) released their report painting a stark picture of a with worsening climate change, city mayors came together to reaffirm their commitment to scale up climate action. Meeting at the world mayor’s summit on climate change mayors from 50 cities in 30 countries adopted the nantes declaration of mayors and subnational Leaders on climate change. The declaration highlights their commitment to scale up climate action on a local level, urge engagement at the global level and enhance access to finance for climate adaptation. Mayors from around the world supported the declaration. Kgosientso Ramokgopa, Executive Mayor of Tshwane, South Africa offered strong support for the declaration and called for a greater focus on the global south and access to funding for adaptation measures. Meanwhile, Polish Vice-Minister of the Environment Beata Jaczewska said the declaration would play an important role at the upcoming UN climate summit to be held in Poland next month. Mathew Applebaum, Mayor of Boulder, Colorado – which has recently been hit with sever flooding – said: “We recently experienced extreme weather, an incredible flood, in which a year’s worth of rain fell in four days. Event like that one that struck Boulder are becoming more common around the globe. It’s clear cities are on the frontlines – we are suffering the impact of climate change. Because of that we have to be leaders and mitigate and adapt in the face of climate change. I am delighted and proud to support the Nantes Declaration.” The declaration came just days after a report from the IPCC showed with extreme certainty that climate change is real, caused by human activities and requires urgent action – warning that sea-levels are rising, precipitation patterns are changing, sea ice is declining and the oceans are acidifying. The adoption of the declaration marks a new phase for the local government climate roadmap – facilitated by ICLEI, Local Governments for Sustainability – that aims to empower local governments in the global climate regime. It aims to bring together national governments who wish to collaborate with local and subnational governments – paving the way to the UN climate conference in Paris in 2015.